engineering

The application of scientific principles for practical purposes, such as
the design and construction of buildings and machines.

Mechanical
engineering includes the design and testing of machinery. Mechanical
engineers work in many branches of industry, including transportation, power
generation, and tool manufacture. Achievements in mechanical engineering
include the development of wind and water turbines,
steam engines, and internal
combustion engines; assembly line production; and the control of machines
using hydraulics, fluidics, and computers.

Civil engineering includes the preparation of
sites and the design and building of structures, such as bridges,
tunnels, and harbors.

Electrical engineers work
on electrical systems. In electronics, engineers are concerned
with devices such as scientific instruments, radio and television equipment,
radar systems, and computers. Nuclear engineers install and operate nuclear
reactors.

Chemical engineering includes the design
and operation of large-scale chemical processes.

There is some overlap of expertise in these many fields of engineering.
For this reason, the academic training of all engineers starts with a thorough
grounding in the fundamentals of science and an education in general engineering
subjects. This is followed by specialized training in the student's chosen
field.